20 000 Rupiah

Perum Peruri — the state security printing company — has handled Indonesian banknote production since the early 1970s, and this note continues that unbroken domestic supply chain. Indonesia is among the relatively few countries that prints its circulating currency entirely in-house, a policy sustained through deliberate industrial investment rather than reliance on foreign security printers.

The TBB#621 reference places this within the 2022 series revision. Watermark remains the primary listed security feature, which is modest by current international standards — though Peruri's full production specs typically include additional elements not always captured in collector references.